I can, therefore I am.

Things do not happen. Things are made to happen.

You never know what motivates you.

Never complain and never explain.

Do not weep do not wax indignant. Understand.

To know oneself, one should assert oneself.

By failing to prepare, you are preparing to fail.

If you've got a talent, protect it.

What you do today can improve all your tomorrows.